Home / 21,039,448.80-31,537,400.40-11,434,533.60

Finding the Fourth Proportional to 21,039,448.80, 31,537,400.40 and 11,434,533.60

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Solution

The fourth proportional to 21,039,448.80, 31,537,400.40 and 11,434,533.60 is: 17,139,967.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,039,448.80 : 31,537,400.40 = 11,434,533.60 : x
  2. Step 2: Convert to fraction form
    21,039,448.80/31,537,400.40 = 11,434,533.60/x
  3. Step 3: Cross multiply
    21,039,448.80x = 31,537,400.40 × 11,434,533.60
  4. Step 4: Simplify right side
    21,039,448.80x = 360,615,464,530,453.44
  5. Step 5: Solve for x
    x = 360,615,464,530,453.44/21,039,448.80
  6. Step 6: Final answer
    x = 17,139,967.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.